You have a Microsoft Forefront Threat Management Gateway (TMG) 2010 server that provides all
Internet access for your company. You have two Mailbox servers configured in a database

availability group (DAG), two Client Access servers, and two Hub Transport servers. You need to
recommend changes to the environment to ensure that users can access Outlook Web App (OWA)
from the Internet if any single server fails. What should you recommend?

A.
Configure a Client Access server array.

B.
Deploy a second TMG server and create a TMG array.

C.
Implement Windows Network Load Balancing for the Client Access servers.

D.
Deploy two Edge Transport servers that are configured to use EdgeSync synchronization.